EP 3260844 A1 20171227 - IMPROVEMENTS IN OR RELATING TO BEAM PHASING
Title (en)
IMPROVEMENTS IN OR RELATING TO BEAM PHASING
Title (de)
VERBESSERUNGEN AN ODER IM ZUSAMMENHANG MIT STRAHLENPHASEN
Title (fr)
PROCÉDÉ POUR AJUSTER LA TEMPORISATION DE PROJECTIONS DE FAISCEAU DANS UN DÉTECTEUR DE FAISCEAU
Publication
Application
Priority
GB 201610856 A 20160621
Abstract (en)
A method for adjusting the timing of beam projections in a beam detector. The method comprises projecting a beam for the purpose of detecting obscuration of the beam and, if a level of signal of the beam detected is less than a threshold for each of a number of consecutive projections or for each consecutive projection over a pre-determined time period, initiating a warning, signalling an alarm or otherwise reacting. The method further comprising adjusting the timing of projecting the beam from a nominal transmit interval 'T' to be within a window time-period 'W' extending from an amount before to an amount after the nominal transmit interval 'T'.
IPC 8 full level
G01N 21/53 (2006.01); G01S 17/88 (2006.01); G08B 17/107 (2006.01); G08B 29/18 (2006.01); G08B 29/24 (2006.01); G01N 21/3504 (2014.01)
CPC (source: EP GB US)
G01N 21/53 (2013.01 - EP GB US); G01S 17/88 (2013.01 - US); G06F 7/58 (2013.01 - US); G08B 17/103 (2013.01 - EP GB US); G08B 29/18 (2013.01 - EP GB US); H04J 14/08 (2013.01 - US); G01N 21/3504 (2013.01 - EP US); G01N 2201/0699 (2013.01 - EP US)
Citation (search report)
- [XYI] US 2015160175 A1 20150611 - KNOX RON [AU], et al
- [YA] US 3924252 A 19751202 - DUSTON DAVID KENNETH
- [A] SIEBEL ET AL: "Test of fire detection algorithms using artificially generated events", FIRE SAFETY JOURNAL, ELSEVIER, AMSTERDAM, NL, vol. 41, no. 4, 17 April 2006 (2006-04-17), pages 258 - 265, XP027940452, ISSN: 0379-7112, [retrieved on 20060601]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3260844 A1 20171227; EP 3260844 B1 20220803; ES 2928982 T3 20221123; GB 201610856 D0 20160803; GB 2551546 A 20171227; GB 2551546 B 20200212; US 10277355 B2 20190430; US 2017366292 A1 20171221
DOCDB simple family (application)
EP 17177062 A 20170621; ES 17177062 T 20170621; GB 201610856 A 20160621; US 201715627667 A 20170620